| Date | Age | Event | Bishop | Title | Current Title |
| unknown | 70.0 | Resigned | Andrea Bogdani (Bogadano) † | Apostolic Administrator of Achrida (Ochrida), Bulgaria | Archbishop Emeritus of Skopje, Macedonia |
| 42.5 | Appointed | Antonio de Monroy, O.P. † | Master General of Order of Friars Preachers | Archbishop of Santiago de Compostela, Spain |
| 53.0 | Died | Manoel a Nativitate do Nascimento, O.S.H. † | Bishop of São Tomé e Príncipe |
| Died | Stanisław Domaniewski † | Titular Bishop of Mactaris |
| 83.0 | Died | Gabriel de Guillistegui, O.F.M. † | Bishop of La Paz, Bolivia |
| 60.0 | Ordained Priest | Francesco Martinelli, C.O. † | Priest of Confederation of Oratorians of St. Philip Neri | Bishop of Patti, Italy |
| Died | Federico Martinotti (Martinozzi) † | Bishop of Sarsina, Italy |
| 52.0 | Resigned | Tommaso Retano † | Bishop of Adria, Italy | Bishop Emeritus |
| Born | Pedro Salazar Góngora † | Motril | Bishop of Córdoba, Spain |
| Appointed | Antônio de Santa Maria † | Bishop of São Luís do Maranhão, Brazil | Bishop-Elect |
| Died | Antônio de Santa Maria † | Bishop-Elect of São Luís do Maranhão, Brazil |
| 31.0 | Ordained Priest | Bernard (Bertrand) de Sénaux † | Priest | Bishop of Autun, France |
| 59.3 | Resigned | Hyacinthe Serroni, O.P. † | Bishop of Mende, France | Archbishop of Albi, France |
| Died | Philippus Stanislaus † | Bishop of Nicopoli, Bulgaria |
| Born | Jan Feliks Szaniawski † | Posnanien | Bishop of Chełm, Poland |
| 45.0 | Died | Ivan Smolianović (Szmolianovich) † | Bishop of Senj (-Modruš), Croatia |
| 33.5 | Ordained Priest | Johann Ernst von Thun † | Priest of Salzburg, Austria | Archbishop |
| 28.2 | Ordained Priest | Michele Carlo Visdomini Cortigiani † | Priest of Firenze {Florence}, Italy | Bishop of Pistoia e Prato, Italy |
| 25.7 | Ordained Priest | Maximilian Heinrich von Weichs zu Rösberg † | Priest | Auxiliary Bishop of Hildesheim, Germany |
| Jan | 55.0 | Died | Carlo Falconi † | Bishop of Castellaneta, Italy |
| 67.0 | Died | Filippo Galilei † | Bishop of Cortona, Italy |
| 3 Jan | 32.0 | Ordained Bishop | Johann Franz Christoph von Talmberg † | Bishop of Hradec Králové, Czech Republic |
| 10 Jan | 61.0 | Ordained Bishop | Paul Aussem † | Titular Bishop of Halmiros | Auxiliary Bishop of Köln {Cologne}, Germany |
| 70.0 | Ordained Bishop | Manoel Pereira, O.P. † | Bishop of São Sebastião do Rio de Janeiro, Brazil | Bishop Emeritus |
| 11 Jan | 65.0 | Appointed | Giovanni Carlo Antonelli † | Bishop of Ferentino, Italy |
| 43.0 | Ordained Bishop | Louis de Lascaris d’Urfé † | Bishop of Limoges, France |
| 71.0 | Appointed | Girolamo Valvassori, O.S.A. † | Bishop of Pesaro, Italy |
| 17 Jan | 46.1 | Ordained Bishop | Louis Aube de Roquemartine † | Bishop of Grasse, France | Bishop of Saint-Paul-Trois-Châteaux, France |
| 59.0 | Ordained Bishop | Réginald Cools, O.P. † | Bishop of Roermond, Netherlands | Bishop of Antwerpen {Antwerp, Anvers}, Belgium |
| 58.0 | Ordained Bishop | Jacques de Fieux † | Bishop of Toul, France |
| 24 Jan | 65.1 | Ordained Bishop | Giovanni Carlo Antonelli † | Bishop of Ferentino, Italy |
| 25 Jan | | Died | Pedro de Godoy, O.P. † | Bishop of Sigüenza, Spain |
| 27 Jan | | Died | Wojciech Jan Koryciński † | Archbishop of Lviv, Ukraine |
| Feb | | Appointed | Jacob Duley † | Bishop of Limerick, Ireland |
| 2 Feb | 55.3 | Died | Sigmund Alphons von Thun † | Bishop of Brixen {Bressanone}, Italy |
| 3 Feb | | Born | Blas Antonio Olóriz † | Barbastro, Spain | Auxiliary Bishop of Monreale, Italy |
| 4 Feb | 54.1 | Ordained Bishop | Jan Małachowski † | Bishop of Chelmno (Culma, Kulm), Poland | Bishop of Kraków, Poland |
| 7 Feb | | Born | Biagio de Dura † | Citta di Penna | Bishop of Potenza, Italy |
| 71.1 | Ordained Bishop | Girolamo Valvassori, O.S.A. † | Bishop of Pesaro, Italy |
| 8 Feb | 49.9 | Confirmed | Juan Tomás de Rocaberti, O.P. † | Archbishop of Valencia, Spain |
| 51.1 | Appointed | Luís de Sousa † | Archbishop of Braga, Portugal |
| 57.1 | Confirmed | Nicolas Ladvocat-Billiard † | Bishop of Boulogne (-Sur-Mer), France |
| 61.2 | Resigned | Veríssimo de Lencastre † | Archbishop of Braga, Portugal | Cardinal, Archbishop Emeritus |
| 74.6 | Resigned | François Perrochel † | Bishop of Boulogne (-Sur-Mer), France | Bishop Emeritus |
| 35.1 | Appointed | Jacques Potier de Novion † | Bishop of Sisteron, France | Bishop of Evreux, France |
| 51.1 | Confirmed | Bernardo Mateo Sánchez de Castellar † | Bishop of Jaca, Spain | Bishop of Tarazona, Spain |
| 47.1 | Appointed | Stanisław Jacek Święcicki † | Bishop of Chełm, Poland |
| Appointed | Nicolás de Ulloa y Hurtado de Mendoza, O.S.A. † | Titular Bishop of Dara | Bishop of Córdoba (Tucumán), Argentina |
| Confirmed | Nicolás de Ulloa y Hurtado de Mendoza, O.S.A. † | Auxiliary Bishop of Lima, Peru | Bishop of Córdoba (Tucumán), Argentina |
| 9 Feb | | Born | Mario Millini (Mellini) † | Rome, Italy | Cardinal, Cardinal-Priest of San Marcello |
| 12 Feb | | Born | Giambattista Labanchi † | Maratheae | Bishop of Oria, Italy |
| 14 Feb | 49.9 | Ordained Bishop | Juan Tomás de Rocaberti, O.P. † | Archbishop of Valencia, Spain |
| 21 Feb | 69.7 | Died | Girolamo Buonvisi † | Cardinal, Bishop of Lucca, Italy |
| 71.1 | Died | Michel Poncet † | Archbishop of Bourges, France |
| 7 Mar | 63.2 | Resigned | Neri Corsini † | Bishop of Arezzo, Italy | Cardinal, Bishop Emeritus |
| 40.1 | Converted | Varlaam Sheptyskyi † | Bishop of Lviv (Ukrainian), Ukraine |
| 8 Mar | | Appointed | John Brenan † | Archbishop of Cashel, Ireland |
| 46.2 | Appointed | Luís da Silva Teles † | Bishop of Lamego, Portugal | Archbishop of Évora, Portugal |
| 46.9 | Appointed | Juan de Isla † | Bishop of Cádiz, Spain | Archbishop of Burgos, Spain |
| 46.2 | Appointed | Alessandro Strozzi † | Bishop of Arezzo, Italy |
| 13 Mar | 26.1 | Ordained Priest | Emanuele Cicatelli † | Priest | Bishop of Avellino e Frigento, Italy |
| 14 Mar | 39.5 | Ordained Bishop | Léonor de Goyon de Matignon (II) † | Bishop of Lisieux, France |
| 66.2 | Died | Flaminio Marcellino † | Bishop of Cesena, Italy |
| 15 Mar | 55.2 | Selected | Diego Lozano, O. Carm. † | Bishop of Potenza, Italy |
| 16 Mar | 66.0 | Died | Francisco de Rois y Mendoza, O. Cist. † | Archbishop of Granada, Spain |
| 18 Mar | 56.2 | Selected | Baltasar Tomás Carbonell y Sánchez, O.P. † | Bishop of Sigüenza, Spain |
| Born | Agostino Spínola, C.R.S. † | Genova | Bishop of Savona, Italy |
| 20 Mar | 67.2 | Appointed | Juan de Escalante Turcios y Mendoza † | Archbishop (Personal Title) of Yucatán (Mérida), México | Bishop |
| 46.2 | Ordained Bishop | Alessandro Strozzi † | Bishop of Arezzo, Italy |
| 21 Mar | 47.2 | Ordained Bishop | Estevão Brioso de Figueiredo † | Bishop of Olinda, Brazil | Bishop of Funchal, Portugal |
| 71.2 | Died | Diego de Silva y Pacheco, O.S.B. † | Bishop of Astorga, Spain |
| 25 Mar | 27.2 | Ordained Priest | Antonio Aiello † | Priest | Bishop of Montepeloso, Italy |
| 1 Apr | | Born | Nicolas Pisanelli, C.R. † | Melito Feudo | Archbishop of Santa Severina, Italy |
| 2 Apr | | Born | Giacomo Beni † | Gubbio | Bishop of Fano, Italy |
| 3 Apr | 66.9 | Selected | Francesco Alberti di Poja † | Bishop of Trento, Italy |
| 5 Apr | 52.3 | Appointed | Stefan Knezevic (de Comitibus), O.F.M. † | Archbishop of Sardica (Sredek, Sofia), Bulgaria |
| Appointed | Gaspar Gasparini, O.F.M. Conv. † | Titular Bishop of Spiga(z) (or Pegae) |
| 15 Apr | 65.3 | Died | Andreas Ridolfi, O.F.M. Conv. † | Auxiliary Bishop of Constantinople |
| 25 Apr | 52.3 | Ordained Bishop | Stefan Knezevic (de Comitibus), O.F.M. † | Archbishop of Sardica (Sredek, Sofia), Bulgaria |
| Ordained Bishop | Gaspar Gasparini, O.F.M. Conv. † | Titular Bishop of Spiga(z) (or Pegae) |
| 26 Apr | 30.3 | Appointed | Domenico Antonio Bernardino † | Bishop of Castellaneta, Italy | Bishop of Mileto, Italy |
| 50.3 | Appointed | José de Lencastre, O. Carm. † | Bishop of Miranda (do Douro), Portugal | Bishop Emeritus of Leiria, Portugal |
| 67.3 | Appointed | Juan Lozano, O.S.A. † | Archbishop (Personal Title) of Plasencia, Spain | Bishop |
| 64.8 | Appointed | Giacomo Santoro † | Bishop of Bitetto, France |
| 62.3 | Resigned | Diego Sarmiento Valladares † | Bishop of Plasencia, Spain | Bishop Emeritus |
| 27 Apr | | Born | Dominicus Laymo † | Bisignanen | Bishop of Vulturara e Montecorvino, Italy |
| 29 Apr | 62.3 | Died | Jean-Albert Belin, O.S.B. † | Bishop of Belley, France |
| 56.3 | Died | Tommaso Brancaccio † | Bishop of Nardò, Italy |
| 48.7 | Selected | Paulinus Mayr † | Bishop of Brixen {Bressanone}, Italy |
| May | 45.1 | Died | Francesco Grassi † | Bishop of Nona (Nin), Croatia |
| 2 May | 54.3 | Died | Jean de Meaupéou † | Bishop of Chalons-sur-Saône, France |
| Born | Francesco Antonio Salomone (Salamone) † | Thermularum | Bishop of Venosa, Italy |
| 3 May | | Born | Maffeo Niccolò Farsetti † | Toscana | Archbishop of Ravenna, Italy |
| 10 May | 43.3 | Confirmed | Johann Hugo von Orsbeck † | Bishop of Speyer, Germany | Archbishop of Trier, Germany |
| 32.4 | Appointed | Anton Stefanov (Stephani), O.F.M. † | Bishop of Nicopoli, Bulgaria |
| 17 May | 49.4 | Died | René de Sauvages † | Bishop of Lavaur, France |
| 20 May | | Born | Johann Adam von Wratislaw von Mitrowitz † | Chotoviny | Bishop of Litoměřice, Czech Republic |
| 24 May | 39.4 | Confirmed | Guillaume de Meschatin † | Bishop of Gap, France |
| 60.4 | Appointed | Marziale Pellegrino, O.F.M. Conv. † | Titular Archbishop of Nazareth |
| Appointed | Stanisław Sarnowski † | Bishop of Włocławek (Kujawy, Kalisze), Poland |
| 59.4 | Appointed | Emanuele Torres † | Archbishop of Brindisi, Italy |
| 48.3 | Appointed | Frans van Horenbeke † | Bishop of Gent {Ghent, Gand}, Belgium |
| 30 May | 26.0 | Ordained Priest | Giambattista Isnardi de Castello † | Priest | Bishop of Mondovi, Italy |
| 60.4 | Ordained Bishop | Marziale Pellegrino, O.F.M. Conv. † | Titular Archbishop of Nazareth |
| 59.4 | Ordained Bishop | Emanuele Torres † | Archbishop of Brindisi, Italy |
| Jun | 60.4 | Ordained Bishop | Antonio de Azcona Imberto † | Bishop of Buenos Aires, Argentina |
| Born | Emmanuel Sanches Goulão † | Alcains | Bishop of São Tomé of Meliapore, India |
| 12 Jun | 44.4 | Ordained Priest | Girolamo Borgia † | Priest | Bishop of Tropea, Italy |
| 13 Jun | 47.4 | Ordained Bishop | Gaspar Barata de Mendonça † | Archbishop of São Salvador da Bahia, Brazil | Archbishop Emeritus |
| 14 Jun | 58.5 | Appointed | Andrea Bonito, C.O. † | Bishop of Capaccio, Italy |
| 47.5 | Appointed | Antonio de León y Becerra † | Bishop of Arequipa, Peru |
| 47.5 | Appointed | Melchor de Liñán y Cisneros † | Archbishop of Lima, Peru |
| 18 Jun | 57.5 | Selected | Pierre du Laurens, O.S.B. † | Bishop of Belley, France |
| 30.5 | Selected | Charles Le Goux de la Berchère † | Bishop of Lavaur, France | Archbishop of Narbonne, France |
| 35.5 | Selected | Michel Phélypeaux de La Vrillière † | Archbishop of Bourges, France |
| 39.5 | Selected | Michel Poncet de la Rivière † | Bishop of Uzés, France |
| 20 Jun | 58.5 | Ordained Bishop | Andrea Bonito, C.O. † | Bishop of Capaccio, Italy |
| 22 Jun | | Died | Angelo Maldachini, O.P. † | Bishop of San Severino (Marche), Italy |
| 29 Jun | 50.3 | Installed | Juan Tomás de Rocaberti, O.P. † | Archbishop of Valencia, Spain |